The FT-IR/FT-FIR powder skeletal spectra of beta-aluminas of composition BaAl9O14.5, BaAl12O19, and BaAl14O22 and of a magnetoplumbite-type Ba-ferrite BaFe12O19 are reported and discussed, on the basis of the structural models previously proposed for these solids. These models find good confirmation in such skeletal spectra. Emphasis is focused on the defect structure of these compounds. (C) 1995 Academic Press, Inc.
Ft-ir Skeletal Powder Spectra of Ba-beta-aluminas With Compositions BaAl9O14.5, BaAl12O19, and BaAl14O22 and of Ba-ferrite, BaFe12O19
BUSCA, GUIDO;
1995-01-01
Abstract
The FT-IR/FT-FIR powder skeletal spectra of beta-aluminas of composition BaAl9O14.5, BaAl12O19, and BaAl14O22 and of a magnetoplumbite-type Ba-ferrite BaFe12O19 are reported and discussed, on the basis of the structural models previously proposed for these solids. These models find good confirmation in such skeletal spectra. Emphasis is focused on the defect structure of these compounds. (C) 1995 Academic Press, Inc.
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